| Carrigaline to Nottingham | 315.13 mi (507.15 km) |
| Carrigaline to Nuneaton | 297.26 mi (478.40 km) |
| Carrigaline to Oadby | 314.22 mi (505.69 km) |
| Carrigaline to Oakengates | 258.35 mi (415.78 km) |
| Carrigaline to Oakham | 329.11 mi (529.65 km) |
| Carrigaline to Oldbury | 274.25 mi (441.36 km) |
| Carrigaline to Oldham | 288.50 mi (464.30 km) |
| Carrigaline to Ollerton | 324.19 mi (521.73 km) |
| Carrigaline to Olton | 282.48 mi (454.61 km) |
| Carrigaline to Omagh | 196.95 mi (316.97 km) |
| Carrigaline to Ormesby | 352.92 mi (567.98 km) |
| Carrigaline to Ormskirk | 260.17 mi (418.70 km) |
| Carrigaline to Orpington | 365.44 mi (588.11 km) |
| Carrigaline to Ossett | 312.42 mi (502.79 km) |
| Carrigaline to Oswaldtwistle | 283.67 mi (456.53 km) |
